The answer would be:
-as a fraction:
![(15)/(31)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/k1bqcthnylqwpfvgl3k9lne70u1rr6gi8q.png)
, since there are a total of 31 kids and 15 boys.
-as a percentage: 48 percent. to find the percentage, you add both numbers (15+16) which is 31. As you can see, the fraction is
![(15)/(31)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/k1bqcthnylqwpfvgl3k9lne70u1rr6gi8q.png)
. now 15 divided by 31 is 0.48. 48%.
-as a ratio: 15:31 the explanation for this is the same as a fraction.